qhia lub tsheb backlight drives nrog kev txhawb nqa converters kom haum rau qhov kub thiab txias ib puag ncig

2021-07-09

Gage Automotive-Lub Xya hli ntuj 6th, Maxim Integrated Product launches plaub-channel, tsis tshua muaj siab, automotive LED backlight tsav MAX25512. nrog ib qho kev sib xyaw boost converter.Qhov no yog tib txoj kev daws teeb meem uas tswj qhov ua kom tiav thiab qhov ci ntsa iab ntawm lub tsheb tso saib txawm tias thaum huab cua txias pib ntawm qhov tsawg li 3V input voltage.
Ib-chip LED tsav tshem tawm sab nraud MOSFET thiab tam sim no nrhiav kom tau resistor thiab integrates I²C kev sib txuas lus los txo cov nqi khoom thiab txo qhov chaw hauv Circuit Court board los ntawm 30%. Los ntawm I²C interface, kev kuaj mob ua haujlwm xws li SHORT mus rau GND ntawm txhua qhov tam sim no absorber muab kev ceeb toom rau microcontroller thiab txhua channel pulse width modulation (PWM) chaw kom muaj kev nyab xeeb thiab zoo dua zaub. Tsis tas li ntawd, MAX25512 tau koom ua ke hybrid dimmer ua haujlwm los txo cov kev cuam tshuam hluav taws xob (EMI) thiab txhim kho qhov sib piv dimmer.
Nws tsav suav nrog plaub 120mA raws uas muaj kev ua haujlwm siab tshaj plaws hauv kev lag luam thaum ua haujlwm ntawm 2.2MHz zaus, mus txog 91%. MAX25512 yog ntim rau hauv me me 24 pins, 4mm x 4mm x 0.75mm square ca tsis muaj tus pin (QFN). Kev tsav tsheb raug txo los ntawm 30% vim tias muaj kev sib koom ua ke siab thiab tshem tawm cov khoom siv sab nraud.
Niaj hnub no lub tsheb pib thiab nres lub zog txhim kho kev lag luam roj, tab sis kuj ua rau nws nyuaj rau lub zog xa hluav taws xob kom tswj tau tib lub teeb ci thaum nws rov pib dua. Piv txwv li, thaum pib, kev ua haujlwm xws li cov teeb pom kev zoo yuav cuam tshuam los ntawm qhov chaw pib txias, thiab lub cav siv lub tsheb roj teeb ntau dhau ua rau cov duab tua thiab rov qhib dua. Lub Maxim Integrated's MAX25512 LED backlit tsav muaj qhov ua haujlwm tsis tshua muaj hluav taws xob li 3V, tom qab pib tsis tau ntxiv qhov hloov pauv ua ntej los tiv thaiv tus saib los ntawm lub zog cuam tshuam.
Szu-Kang Hsien, tus thawj coj ntawm kev tswj hwm kev lag luam ntawm Maxim Integrated hais tias "Cov neeg tsim khoom xav tau LED tsav nrog kev sib koom ua ke ntau dua los txo cov nqi daws teeb meem thiab thaj chaw PCB," said Szu-Kang Hsien, tus thawj coj ntawm kev tswj hwm kev lag luam ntawm Maxim Integrated. Maxim Integrated's MAX25512 LED tsav muab qhov siab tshaj plaws ntawm kev sib koom ua ke thiab kev ua haujlwm ntawm 2.2MHz hloov zaus. "
Rov luam tawm los ntawm Gage Auto Community